It can also be written like that, but the Google Japanese IME, which orders options according to the frequency with which they occur in the pages they index, gi

It can also be written like that, but the Google Japanese IME, which orders options according to the frequency with which they occur in the pages they index, gives 「わかり」 as the first option. One common mistake made by over-eager foreign learners of Japanese is to try to write everything they can in kanji. In actuality, a lot of stuff is left in kana.